In this Sunday's episode of the ABC drama ONCE UPON A TIME titled "Child of the Moon" - Ruby's fear about turning into a wolf during the first curse-free Storybrooke full moon is confirmed when one of the town's residents is viciously murdered, and Ruby is the prime suspect; Decker - aka King George - threatens to expose David as a shepherd, not a prince, and not fit to run the town as sheriff; and Leroy stumbles upon some treasure in the Storybrooke mine that could help bring Mary Margaret and Emma back into our world. Meanwhile, in the fairytale land that was, Red Riding Hood finds a kindred spirit in Anita (Annabeth Gish), a charismatic and mysterious leader of a pack of humans who, like Red, turn out to be wolves. The episode airs SUNDAY, NOVEMBER 11 (8:00-9:00 p.m., ET) on the ABC Television Network. Get a sneak peek below!